Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8397865 | System and method for noise suppression | Alan Richard Douglas | 2013-03-19 |
| 8235171 | System and method for noise suppression | Alan Richard Douglas | 2012-08-07 |
| 8047329 | System and method for noise suppression | Alan Richard Douglas | 2011-11-01 |
| 6557389 | Machine for corrugating metal foils | John D. Beyer, John E. Meaney | 2003-05-06 |